Not sure what my favourite episode is since there's so many great ones and i haven't watched it in a while, but this one always comes to mind - http://en.wikipedia.org/wiki/Twenty_Two_%28The_Twilight_Zone%29 . Good call with the Talking Tina episode Cheech; it's actually called Living Doll, but that creeped me out when i was a kid, it was actually the second episode i watched after watching a double bill on FX or someting here in the UK when i was about 10.

Never watched any of the 80s series, but i did watch the first episode of the 2002 series and thought it was terrible so i just stick to the original now.